Support scanning HiSeq runs with multiple analyses.

Support scanning HiSeq runs with multiple analyses.

It extends the previous C1-100 directory name with the concept of
a suffix extension to that name. The suffix is gathered from whatever the
user came up with their own Aligned/Unaligned directory names.

I discovered I'd previously been calling the
"run_{flowcell id}_{timestamp}.xml" filename the runfolder name. Which is
dumb, as that's a filename, not a name. So this patch renamed it.
(Since I needed to clean up some of the names to implement the above
"run_dirname" functionality.

since I was testing the run.name in the test_runfolders* I needed
to fix those. (And I'm really regretting my cut-n-paste programming).